private void Remove(int idx_remove, T val_remove)
{
int idx_update = vals.Count - 1;
var val_update = idx2val[idx_update];
// Remove value
vals.RemoveUnordered(idx_remove);
// Update moved value in the lookup dictionaries
val2idx[val_update] = idx_remove;
idx2val[idx_remove] = val_update;
// Remove outdated value from the lookup dictionaries
val2idx.Remove(val_remove);
idx2val.Remove(idx_update);
}
private void Remove(int idx_remove, TKey key_remove)
{
int idx_update = keys.Count - 1;
var key_update = idx2key[idx_update];
// Remove key and value
keys.RemoveUnordered(idx_remove);
vals.RemoveUnordered(idx_remove);
// Update moved key and value in the lookup dictionaries
key2idx[key_update] = idx_remove;
idx2key[idx_remove] = key_update;
// Remove outdated key and value from the lookup dictionaries
key2idx.Remove(key_remove);
idx2key.Remove(idx_update);
}